Penetron tube
[计] 射线穿透管
🧩 词语组成解析
n. 介子
🗣️ 情景例句
2, 3 , 1, 2, 3, pony, pony... 2 3 1 2 3
小马步 小马步 ……
Hanve given him anything?
你给他东西吗？
He was very healthy and happy, but he could not look after himself.
他很健康，非常欢快。但不能照料自己。